document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=179529>Question 179529</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Walt made an extra $12,000 last year from a part time job.  He invested part of the money at 7% and the rest at 9%.  He made a total of $970 in interest. How much was invested at 7%? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #134476 by </B><A HREF=/tutors/aboutme.mpl?userid=MissionPossible><B>MissionPossible(18)</B></A><img src=\"/images/stars/stars-06.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MissionPossible><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=134476\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> He invested part of the money at 7% and the rest at 9%.<BR>\n" );
document.write( "How much was invested at 7%?    ----->   X<BR>\n" );
document.write( "invested part of the money at 7% would made X*0.07<BR>\n" );
document.write( "invested part of the money at 9% would made (12,000 - X)*0.09<BR>\n" );
document.write( "He made a total of $970 --->  970  =  X*0.07 + (12,000 - X)*0.07\r<BR>\n" );
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document.write( "       970  =  X*0.07 + (12,000 - X)*0.09<BR>\n" );
document.write( "       970  =  X*0.07 + 1080 - 0.09X<BR>\n" );
document.write( "       0.09X-0.07X =   1080 - 970<BR>\n" );
document.write( "       0.02X       =    110<BR>\n" );
document.write( "           X       =    110/0.02 <BR>\n" );
document.write( "                   =    5500\r<BR>\n" );
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document.write( "How much was invested at 7%?  $5,500   Ans.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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